Added mat4 in libftm, can rotate, scale and translate vector

10 files changed, 285 insertions, 0 deletions

diff --git a/vendor/libftm/src/ftm_radian.c b/vendor/libftm/src/ftm_radian.c
new file mode 100644
index 0000000..6e1e380
--- /dev/null
+++ b/vendor/libftm/src/ftm_radian.c
@@ -0,0 +1,18 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_radian.c                                       :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 11:08:29 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 11:19:17 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm.h"
+
+float	ftm_radian(float degree)
+{
+	return ((degree / 180.0) * M_PI);
+}
diff --git a/vendor/libftm/src/mat4/ftm_mat4get.c b/vendor/libftm/src/mat4/ftm_mat4get.c
new file mode 100644
index 0000000..3223788
--- /dev/null
+++ b/vendor/libftm/src/mat4/ftm_mat4get.c
@@ -0,0 +1,18 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_mat4get.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 13:54:08 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 13:54:09 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_mat4.h"
+
+float		ftm_mat4get(t_ftmmat4 *mat4, size_t y, size_t x)
+{
+	return (mat4->m[y * 4 + x]);
+}
diff --git a/vendor/libftm/src/mat4/ftm_mat4init_eye.c b/vendor/libftm/src/mat4/ftm_mat4init_eye.c
new file mode 100644
index 0000000..d32f075
--- /dev/null
+++ b/vendor/libftm/src/mat4/ftm_mat4init_eye.c
@@ -0,0 +1,23 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_mat4init_eye.c                                 :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 11:10:44 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 12:17:21 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_mat4.h"
+
+t_ftmmat4	*ftm_mat4init_eye(t_ftmmat4 *mat4, float x)
+{
+	ftm_mat4init_fill(mat4, 0.0);
+	ftm_mat4set(mat4, 0, 0, x);
+	ftm_mat4set(mat4, 1, 1, x);
+	ftm_mat4set(mat4, 2, 2, x);
+	ftm_mat4set(mat4, 3, 3, x);
+	return (mat4);
+}
diff --git a/vendor/libftm/src/mat4/ftm_mat4init_fill.c b/vendor/libftm/src/mat4/ftm_mat4init_fill.c
new file mode 100644
index 0000000..d7b0b3a
--- /dev/null
+++ b/vendor/libftm/src/mat4/ftm_mat4init_fill.c
@@ -0,0 +1,26 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_mat4init_fill.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 12:16:59 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 12:18:01 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_mat4.h"
+
+t_ftmmat4	*ftm_mat4init_fill(t_ftmmat4 *mat4, float x)
+{
+	size_t	i;
+
+	i = 0;
+	while (i < 4 * 4)
+	{
+		mat4->m[i] = x;
+		i++;
+	}
+	return (mat4);
+}
diff --git a/vendor/libftm/src/mat4/ftm_mat4mul.c b/vendor/libftm/src/mat4/ftm_mat4mul.c
new file mode 100644
index 0000000..553e47c
--- /dev/null
+++ b/vendor/libftm/src/mat4/ftm_mat4mul.c
@@ -0,0 +1,40 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_mat4mul.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 11:22:20 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 14:03:19 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_mat4.h"
+
+static float	st_dot(t_ftmmat4 *a, t_ftmmat4 *b, int y, int x)
+{
+	return (ftm_mat4get(a, y, 0) * ftm_mat4get(b, 0, x) +
+			ftm_mat4get(a, y, 1) * ftm_mat4get(b, 1, x) +
+			ftm_mat4get(a, y, 2) * ftm_mat4get(b, 2, x) +
+			ftm_mat4get(a, y, 3) * ftm_mat4get(b, 3, x));
+}
+
+t_ftmmat4		*ftm_mat4mul(t_ftmmat4 *dst, t_ftmmat4 *other)
+{
+	t_ftmmat4	tmp;
+	int			i;
+	int			j;
+
+	i = -1;
+	while (++i < 4)
+	{
+		j = -1;
+		while (++j < 4)
+			ftm_mat4set(&tmp, i, j, st_dot(dst, other, i, j));
+	}
+	i = -1;
+	while (++i < 4 * 4)
+		dst->m[i] = tmp.m[i];
+	return (dst);
+}
diff --git a/vendor/libftm/src/mat4/ftm_mat4rotate.c b/vendor/libftm/src/mat4/ftm_mat4rotate.c
new file mode 100644
index 0000000..0a39c16
--- /dev/null
+++ b/vendor/libftm/src/mat4/ftm_mat4rotate.c
@@ -0,0 +1,70 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_mat4rotate.c                                   :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 11:44:18 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 14:05:18 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_mat4.h"
+
+/*
+** Rotation axis/vector [x, y, z]
+**
+** 1st column:
+** | cos(θ) + x^2 (1 − cos(θ))   |
+** | y x (1 − cos(θ)) + z sin(θ) |
+** | z x (1 − cos(θ)) − y sin(θ) |
+** | 0                           |
+**
+** 2nd column:
+** | x y (1 − cos(θ)) − z sin(θ) |
+** | cos(θ) + y^2 (1 − cos(θ))   |
+** | z y (1 − cos(θ)) + x sin(θ) |
+** | 0                           |
+**
+** 3rd column:
+** | x z (1 − cos(θ)) + y sin(θ) |
+** | y z (1 − cos(θ)) − x sin(θ) |
+** | cos(θ) + z^2 (1 − cos(θ))   |
+** | 0                           |
+*/
+
+t_ftmmat4	*ftm_mat4rotate(t_ftmmat4 *mat4, float theta, t_ftmvec3 *axis)
+{
+	float		x;
+	float		y;
+	float		z;
+	float		sin_t;
+	float		cos_t;
+	t_ftmmat4	rot;
+
+	x = axis->v[0];
+	y = axis->v[1];
+	z = axis->v[2];
+	sin_t = sin(theta);
+	cos_t = cos(theta);
+	ftm_mat4init_fill(&rot, 0.0);
+	ftm_mat4set(&rot, 0, 0, cos_t + x * x * (1 - cos_t));
+	ftm_mat4set(&rot, 1, 0, y * x * (1 - cos_t) + z * sin_t);
+	ftm_mat4set(&rot, 2, 0, z * x * (1 - cos_t) + y * sin_t);
+	ftm_mat4set(&rot, 3, 0, 0.0);
+
+	ftm_mat4set(&rot, 0, 1, x * y * (1 - cos_t) - z * sin_t);
+	ftm_mat4set(&rot, 1, 1, cos_t + y * y * (1 - cos_t));
+	ftm_mat4set(&rot, 2, 1, z * y * (1 - cos_t) + x * sin_t);
+	ftm_mat4set(&rot, 3, 1, 0);
+
+	ftm_mat4set(&rot, 0, 2, x * z * (1 - cos_t) + y * sin_t);
+	ftm_mat4set(&rot, 1, 2, y * z * (1 - cos_t) - x * sin_t);
+	ftm_mat4set(&rot, 2, 2, cos_t + z * z * (1 - cos_t));
+	ftm_mat4set(&rot, 3, 2, 0);
+
+	ftm_mat4set(&rot, 3, 3, 1.0);
+	ftm_mat4mul(mat4, &rot);
+	return (mat4);
+}
diff --git a/vendor/libftm/src/mat4/ftm_mat4scale.c b/vendor/libftm/src/mat4/ftm_mat4scale.c
new file mode 100644
index 0000000..a278c83
--- /dev/null
+++ b/vendor/libftm/src/mat4/ftm_mat4scale.c
@@ -0,0 +1,25 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_mat4scale.c                                    :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 11:16:19 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 11:18:38 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_mat4.h"
+
+t_ftmmat4	*ftm_mat4scale(t_ftmmat4 *mat4, float x, float y, float z)
+{
+	t_ftmmat4	scale;
+
+	ftm_mat4init_eye(&scale, 1.0);
+	ftm_mat4set(&scale, 0, 0, x);
+	ftm_mat4set(&scale, 1, 1, y);
+	ftm_mat4set(&scale, 2, 2, z);
+	ftm_mat4mul(mat4, &scale);
+	return (mat4);
+}
diff --git a/vendor/libftm/src/mat4/ftm_mat4set.c b/vendor/libftm/src/mat4/ftm_mat4set.c
new file mode 100644
index 0000000..55e8125
--- /dev/null
+++ b/vendor/libftm/src/mat4/ftm_mat4set.c
@@ -0,0 +1,19 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_mat4set.c                                      :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 11:21:20 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 11:21:58 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_mat4.h"
+
+t_ftmmat4	*ftm_mat4set(t_ftmmat4 *mat4, size_t y, size_t x, float value)
+{
+	mat4->m[y * 4 + x] = value;
+	return (mat4);
+}
diff --git a/vendor/libftm/src/mat4/ftm_mat4translate.c b/vendor/libftm/src/mat4/ftm_mat4translate.c
new file mode 100644
index 0000000..38a44d9
--- /dev/null
+++ b/vendor/libftm/src/mat4/ftm_mat4translate.c
@@ -0,0 +1,25 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_mat4translate.c                                :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 11:12:21 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 11:19:05 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_mat4.h"
+
+t_ftmmat4	*ftm_mat4translate(t_ftmmat4 *mat4, float x, float y, float z)
+{
+	t_ftmmat4	trans;
+
+	ftm_mat4init_eye(&trans, 1.0);
+	ftm_mat4set(&trans, 0, 3, x);
+	ftm_mat4set(&trans, 1, 3, y);
+	ftm_mat4set(&trans, 2, 3, z);
+	ftm_mat4mul(mat4, &trans);
+	return (mat4);
+}
diff --git a/vendor/libftm/src/vec3/ftm_vec3init.c b/vendor/libftm/src/vec3/ftm_vec3init.c
new file mode 100644
index 0000000..ff5047c
--- /dev/null
+++ b/vendor/libftm/src/vec3/ftm_vec3init.c
@@ -0,0 +1,21 @@
+/* ************************************************************************** */
+/*                                                                            */
+/*                                                        :::      ::::::::   */
+/*   ftm_vec3init.c                                     :+:      :+:    :+:   */
+/*                                                    +:+ +:+         +:+     */
+/*   By: charles <charles.cabergs@gmail.com>        +#+  +:+       +#+        */
+/*                                                +#+#+#+#+#+   +#+           */
+/*   Created: 2020/05/12 11:19:55 by charles           #+#    #+#             */
+/*   Updated: 2020/05/12 11:20:53 by charles          ###   ########.fr       */
+/*                                                                            */
+/* ************************************************************************** */
+
+#include "libftm_vec3.h"
+
+t_ftmvec3	*ftm_vec3init(t_ftmvec3 *vec3, float x, float y, float z)
+{
+	vec3->v[0] = x;
+	vec3->v[1] = y;
+	vec3->v[2] = z;
+	return (vec3);
+}